Oxidising and Reducing Agents

Question 1

Oxidation is the?

Answer 1

LOSS OF ELECTRONS

Question 2

Reduction is the?

Answer 2

GAIN OF ELECTRONS

Question 3

What is a REDOX reaction?

Answer 3

Where the REDUCTION and OXIDATION reactions happen at the same time

Question 4

Oxidation equation example:

Answer 4

AL —-> Al3+ + 3e- (state symbols)

Question 5

Reduction equation example

Answer 5

Fe3+ + 3e- —-> Fe (state symbols)

Question 6

REDOX can also be a ?

Answer 6

Displacement reaction

Question 7

What is an oxidising agent?

Answer 7

a chemical that OXIDISES ANOTHER SUBSTANCE and gets REDUCED ITSELF

Question 8

What is a reducing agent?

Answer 8

a chemical that REDUCES ANOTHER SUBSTANCE and gets OXIDISED ITSELF

Question 9

Oxidising agents are?

Answer 9

ELECTRON ACCEPTORS, as they get reduced

Question 10

Reduction agents are?

Answer 10

ELECTRON DONORS, they get oxidised

Question 11

What is electronegativity?

Answer 11

The measure of attraction that an atom has for a shared pair of electrons

Question 12

Elements with a high electronegativity are?

Answer 12

likely to act as OXIDISING agents as they want to gain electrons, ie they get reduced.

Question 13

Low electronegativity means?

Answer 13

They will be REDUCING agents, as they LOSE electrons. ie get oxidised

Question 14

Non-metals tend to be?

Answer 14

OXIDISING AGENTS, as they have high electronegativities

Question 15

What are usually the best oxidising agents?

Answer 15

Halogens, group 7

Question 16

Metals tend to be?

Answer 16

REDUCING AGENTS, as their electronegativity values are low,

Question 17

What are usually the best reducing agents?

Answer 17

Group 1, ALKALI METALS